blue birch
Betula × caerulea
Also known as: Blue Birch
- Native to:
- Canada, United States
GBIF: Laurent Dufour






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Betulaceae
- Genus:
- Betula
- Species:
- Betula × caerulea
- USDA Symbol:
- BECA4
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Tree
- Height:
- 2000 cm
- Drought Tolerance:
- Low
- Bloom Months:
- apr,may
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★★★ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Fall Color:
- yellow
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Can resprout from the root collar after fire damage, typical of birch species.
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.0 - 6.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- Prefers cool, temperate climates
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–28 days
- Notes:
- Seeds require light for germination and should be surface sown. Fresh seed germinates best.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: Claude AI